Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1982-03-03
1984-10-09
Tung, T.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041291, 204224M, 219 69E, 219 69W, B23P 108, B23P 102
Patent
active
044759967
ABSTRACT:
A multi-strand wire electroerosion machining method and apparatus are disclosed wherein a plurality of wires dispensed from respective wire sources are fed separately into a wire travel path and are assembled via wire guides into a bundle thereof. The bundle of the wires traversing a fluid-flushed cutting zone defined between machining electrode guides constitutes a single traveling electrode for electroerosively machining a workpiece. The wires from the cutting zone are taken up into a collection site while they are held sufficiently taut between the electrode guides. The workpiece is displaced relative to the bundle of traveling wires transversely to the axis thereof to machine a desired contour in the workpiece. Preferably, the wires in the bundle are twisted. Also disclosed is a rotary die for shaping the wires in their travel path to provide the bundle with a predetermined cross-sectional contour spaced from the wall of the workpiece across the machining gap.
REFERENCES:
patent: 3946189 (1976-03-01), Pomella et al.
patent: 4103137 (1978-07-01), Levitt et al.
Dubno Herbert
Inoue-Japax Research Incorporated
Ross Karl F.
Thane Nathan
Tung T.
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